How do i take a radio out of a Rover?

[mr hws]

I have a Rover 220 sd with a factory fitted radio,i now want to change it but i cant fathom out how to remove it! I have a hex key set but there appear to be no screws in the small holes on the front.The radio is well secure,so i was wondering if i have to remove part of the dashboard?
Any help would be greatly appreciated,especially as i now have back ache from leaning over the drivers seat trying to prise the radio out!
Thanks.

[tom hopkins]

a set of radio extracters can be bought from halfords shaped like a "u" one for either side should cost no more than a couple of quid at most.

[mr hws]

Thanks for that,ill try it tomorrow.